E9 Error Code (Quantum Series)Updated 8 days ago
Introduction
The "E9" error code indicates the intelligent power module (IPM) or compressor driving control is operating abnormally.
This article is for the following systems:
- Quantum Fresh High-Wall (WYT-FA)
- Quantum Hyperformance High-Wall (WYT-25)
- Quantum Ultra Ceiling Cassette (CYT-24)
- Quantum Ultra Ducted Ceiling Concealed (RYT-24)
- Quantum Ultra Floor-Ceiling Flex (UYT-24)
- Quantum Ultra High-Wall (WYT-24)
If the system stops operating for IPM protection six times consecutively, it will display the error code. The system can't be recovered for operation, except by pressing the On/Off button.
